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Médias (29)
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#4 Emo Creates
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#2 Typewriter Dance
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (67)
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XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...) -
Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
MediaSPIP en mode privé (Intranet)
17 septembre 2013, parÀ partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)
Sur d’autres sites (5748)
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ffpmeg drops last frame when compressing from MP4 to MP4 (libx264)
28 octobre 2018, par UsoboiSo, I’m using this code to compress my *mp4 file. I need to get lower quality and decrease bitrate :
ffmpeg -i input.mp4 -c:v libx264 output.mp4
The problem is : the last frame of footage is dropped after ffmpeg compression.
Screenshot is here : screenshot_ffmpeg_drop frameI tried to use full preferences I need, but the problem is the same.
ffmpeg -i input.mp4 -c:v libx264 -vf scale=1280:720 -preset fast -crf 29 -r 25 -c:a copy output.mp4
logfile during ffmpeg encoding :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’\input.mp4’ :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
creation_time : 2018-10-28T11:06:03.000000Z
Duration : 00:00:12.76, start : 0.000000, bitrate : 5374 kb/s
Stream #0:0(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5368 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : AVC CodingStream mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264
(libx264)) Press [q] to stop, [?] for help [libx264 @
000002fae8b50780] using SAR=1/1 [libx264 @ 000002fae8b50780] using cpu
capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @
000002fae8b50780] profile High, level 3.1 [libx264 @ 000002fae8b50780]
264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft
2003-2018 - http://www.videolan.org/x264.html - options : cabac=1 ref=2
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 psy=1 psy_rd=1.00:0.00
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=crf
mbtree=1 crf=29.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
aq=1:1.00 Output #0, mp4, to ’\output.mp4’ : Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
encoder : Lavf58.17.100
Stream #0:0(eng) : Video : h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1—1, 25 fps, 12800 tbn, 25
tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : Lavc58.19.104 libx264
Side data :
cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1frame= 318 fps=127 q=-1.0 Lsize= 855kB time=00:00:12.60 bitrate=
556.0kbits/s speed=5.05x video:851kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.534683% [libx264 @
0000015d5cef0500] frame I:2 Avg QP:26.18 size : 67800 [libx264 @
0000015d5cef0500] frame P:80 Avg QP:27.93 size : 5439 [libx264 @
0000015d5cef0500] frame B:236 Avg QP:32.44 size : 1269 [libx264 @
0000015d5cef0500] consecutive B-frames : 0.9% 0.0% 0.9% 98.1%
[libx264 @ 0000015d5cef0500] mb I I16..4 : 10.6% 62.5% 26.8% [libx264
@ 0000015d5cef0500] mb P I16..4 : 0.5% 1.0% 0.2% P16..4 : 36.1%
5.1% 3.6% 0.0% 0.0% skip:53.6% [libx264 @ 0000015d5cef0500] mb B I16..4 : 0.6% 0.5% 0.0% B16..8 : 22.2% 0.6% 0.0% direct : 2.0%
skip:74.2% L0:44.9% L1:54.5% BI : 0.6% [libx264 @ 0000015d5cef0500]
8x8 transform intra:55.0% inter:86.2% [libx264 @ 0000015d5cef0500]
coded y,uvDC,uvAC intra : 48.1% 54.9% 27.0% inter : 3.2% 5.2% 0.2%
[libx264 @ 0000015d5cef0500] i16 v,h,dc,p : 19% 56% 10% 15% [libx264 @
0000015d5cef0500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 25% 18% 5% 6%
5% 8% 5% 8% [libx264 @ 0000015d5cef0500] i4
v,h,dc,ddl,ddr,vr,hd,vl,hu : 27% 24% 9% 5% 8% 7% 9% 5% 7%
[libx264 @ 0000015d5cef0500] i8c dc,h,v,p : 60% 20% 15% 4% [libx264 @
0000015d5cef0500] Weighted P-Frames : Y:0.0% UV:0.0% [libx264 @
0000015d5cef0500] ref P L0 : 67.7% 32.3% [libx264 @ 0000015d5cef0500]
ref B L0 : 80.4% 19.6% [libx264 @ 0000015d5cef0500] ref B L1 : 92.1%
7.9% [libx264 @ 0000015d5cef0500] kb/s:547.35 -
ffpmeg drops last frame when compressing from MP4 to MP4 (libx264)
28 octobre 2018, par UsoboiSo, I’m using this code to compress my *mp4 file. I need to get lower quality and decrease bitrate :
ffmpeg -i input.mp4 -c:v libx264 output.mp4
The problem is : the last frame of footage is dropped after ffmpeg compression.
Screenshot is here : screenshot_ffmpeg_drop frameI tried to use full preferences I need, but the problem is the same.
ffmpeg -i input.mp4 -c:v libx264 -vf scale=1280:720 -preset fast -crf 29 -r 25 -c:a copy output.mp4
logfile during ffmpeg encoding :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’\input.mp4’ :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
creation_time : 2018-10-28T11:06:03.000000Z
Duration : 00:00:12.76, start : 0.000000, bitrate : 5374 kb/s
Stream #0:0(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5368 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : AVC CodingStream mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264
(libx264)) Press [q] to stop, [?] for help [libx264 @
000002fae8b50780] using SAR=1/1 [libx264 @ 000002fae8b50780] using cpu
capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @
000002fae8b50780] profile High, level 3.1 [libx264 @ 000002fae8b50780]
264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft
2003-2018 - http://www.videolan.org/x264.html - options : cabac=1 ref=2
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 psy=1 psy_rd=1.00:0.00
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=crf
mbtree=1 crf=29.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
aq=1:1.00 Output #0, mp4, to ’\output.mp4’ : Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
encoder : Lavf58.17.100
Stream #0:0(eng) : Video : h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1—1, 25 fps, 12800 tbn, 25
tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : Lavc58.19.104 libx264
Side data :
cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1frame= 318 fps=127 q=-1.0 Lsize= 855kB time=00:00:12.60 bitrate=
556.0kbits/s speed=5.05x video:851kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.534683% [libx264 @
0000015d5cef0500] frame I:2 Avg QP:26.18 size : 67800 [libx264 @
0000015d5cef0500] frame P:80 Avg QP:27.93 size : 5439 [libx264 @
0000015d5cef0500] frame B:236 Avg QP:32.44 size : 1269 [libx264 @
0000015d5cef0500] consecutive B-frames : 0.9% 0.0% 0.9% 98.1%
[libx264 @ 0000015d5cef0500] mb I I16..4 : 10.6% 62.5% 26.8% [libx264
@ 0000015d5cef0500] mb P I16..4 : 0.5% 1.0% 0.2% P16..4 : 36.1%
5.1% 3.6% 0.0% 0.0% skip:53.6% [libx264 @ 0000015d5cef0500] mb B I16..4 : 0.6% 0.5% 0.0% B16..8 : 22.2% 0.6% 0.0% direct : 2.0%
skip:74.2% L0:44.9% L1:54.5% BI : 0.6% [libx264 @ 0000015d5cef0500]
8x8 transform intra:55.0% inter:86.2% [libx264 @ 0000015d5cef0500]
coded y,uvDC,uvAC intra : 48.1% 54.9% 27.0% inter : 3.2% 5.2% 0.2%
[libx264 @ 0000015d5cef0500] i16 v,h,dc,p : 19% 56% 10% 15% [libx264 @
0000015d5cef0500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 25% 18% 5% 6%
5% 8% 5% 8% [libx264 @ 0000015d5cef0500] i4
v,h,dc,ddl,ddr,vr,hd,vl,hu : 27% 24% 9% 5% 8% 7% 9% 5% 7%
[libx264 @ 0000015d5cef0500] i8c dc,h,v,p : 60% 20% 15% 4% [libx264 @
0000015d5cef0500] Weighted P-Frames : Y:0.0% UV:0.0% [libx264 @
0000015d5cef0500] ref P L0 : 67.7% 32.3% [libx264 @ 0000015d5cef0500]
ref B L0 : 80.4% 19.6% [libx264 @ 0000015d5cef0500] ref B L1 : 92.1%
7.9% [libx264 @ 0000015d5cef0500] kb/s:547.35 -
ffmpeg/ffplay stream error using Windows 10
23 juin 2018, par AlanI’m using Android’s screenrecord to stream the device screen via adb and pipe the
output to ffplay 3.4. It works great using OS X via the command :adb shell screenecord --bit-rate=16m --output-format=h264 --size 800x600 - | c:\bin\ffplay.exe -framerate 30 -framedrop -bufsize 60M -
Windows 10 is a different story. I get a blurred out screen and the following stream of errors :
ffplay version 3.4 Copyright (c) 2003-2017 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[h264 @ 000002a5f08320c0] negative number of zero coeffs at 9 6/0
[h264 @ 000002a5f08320c0] error while decoding MB 9 6
[h264 @ 000002a5f08320c0] concealing 1640 DC, 1640 AC, 1640 MV errors in I frame
[h264 @ 000002a5f08320c0] negative number of zero coeffs at 44 7
[h264 @ 000002a5f08320c0] error while decoding MB 44 7
[h264 @ 000002a5f08320c0] concealing 1555 DC, 1555 AC, 1555 MV errors in P frame
[h264 @ 000002a5f08320c0] out of range intra chroma pred mode
[h264 @ 000002a5f08320c0] error while decoding MB 12 7
[h264 @ 000002a5f08320c0] concealing 1587 DC, 1587 AC, 1587 MV errors in P frame
[h264 @ 000002a5f08320c0] out of range intra chroma pred mode
[h264 @ 000002a5f08320c0] error while decoding MB 49 6
[h264 @ 000002a5f08320c0] concealing 1600 DC, 1600 AC, 1600 MV errors in P frame
[h264 @ 000002a5f08320c0] mb_type 260 in P slice too large at 11 11
[h264 @ 000002a5f08320c0] error while decoding MB 11 11
[h264 @ 000002a5f08320c0] concealing 1388 DC, 1388 AC, 1388 MV errors in P frame
[h264 @ 000002a5f08320c0] out of range intra chroma pred mode
[h264 @ 000002a5f08320c0] error while decoding MB 24 16
[h264 @ 000002a5f08320c0] concealing 1125 DC, 1125 AC, 1125 MV errors in P frame
Input #0, h264, from 'pipe:':q= 0KB vq= 0KB sq= 0B f=0/0
Duration: N/A, bitrate: N/A nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
Stream #0:0: Video: h264 (Baseline), yuv420p(tv, bt470bg/bt470bg/smpte170m, progressive), 800x600, 30 fps, 30 tbr, 1200k tbn, 60 tbc
[h264 @ 000002a5f144e4c0] negative number of zero coeffs at 9 6
[h264 @ 000002a5f144e4c0] error while decoding MB 9 6
[h264 @ 000002a5f144e4c0] concealing 1640 DC, 1640 AC, 1640 MV errors in I frame
[h264 @ 000002a5f10500a0] negative number of zero coeffs at 44 7
[h264 @ 000002a5f10500a0] error while decoding MB 44 7
[h264 @ 000002a5f10500a0] concealing 1555 DC, 1555 AC, 1555 MV errors in P frame
[h264 @ 000002a5f1050840] out of range intra chroma pred mode
[h264 @ 000002a5f1050840] error while decoding MB 12 7
[h264 @ 000002a5f1050840] concealing 1587 DC, 1587 AC, 1587 MV errors in P frame
[h264 @ 000002a5f0e500a0] out of range intra chroma pred mode
[h264 @ 000001f5df14e5e0] cbp too large (51) at 43 7= 0B f=0/0
[h264 @ 000001f5df14e5e0] error while decoding MB 43 7
[h264 @ 000001f5df14e5e0] concealing 1556 DC, 1556 AC, 1556 MV errors in P frame
[h264 @ 000001f5de6c9980] cbp too large (51) at 43 7= 0B f=0/0
[h264 @ 000001f5de6c9980] error while decoding MB 43 7
[h264 @ 000001f5de6c9980] concealing 1556 DC, 1556 AC, 1556 MV errors in P frame
[ h264 @ 000001f5df338b20] cbp too large (51) at 18 7= 0B f=0/0
[h264 @ 000001f5df338b20] error while decoding MB 18 7
[h264 @ 000001f5df338b20] concealing 1581 DC, 1581 AC, 1581 MV errors in P frame
[h264 @ 000001f5de618f20] cbp too large (60) at 30 8= 0B f=0/0
[h264 @ 000001f5de618f20] error while decoding MB 30 8
[h264 @ 000001f5de618f20] concealing 1519 DC, 1519 AC, 1519 MV errors in P frame
[h264 @ 000001f5de5f9120] cbp too large (151) at 15 11 0B f=0/0
[h264 @ 000001f5de5f9120] error while decoding MB 15 11
[h264 @ 000001f5de5f9120] concealing 1384 DC, 1384 AC, 1384 MV errors in P frame
[h264 @ 000001f5df14e5e0] cbp too large (51) at 17 8= 0B f=0/0
[h264 @ 000001f5df14e5e0] error while decoding MB 17 8
[h264 @ 000001f5df14e5e0] concealing 1532 DC, 1532 AC, 1532 MV errors in P frameHow can I fix this ?